The Rock River Arms LAR-15M Hunter chambered in .450 Bushmaster is engineered for reliable performance across diverse operational environments. This platform is configured to facilitate effective large game hunting and maintain precision for demanding target applications.
Key Features
Barrel System
- Construction: A 16-inch stainless steel barrel, cryogenically treated to optimize material stress relief and ensure consistent accuracy over extended operational cycles.
- Twist Rate: Features a 1:24 twist rate, specifically calibrated to effectively stabilize heavy .450 Bushmaster hunting projectiles, enhancing terminal ballistics and flight consistency.
Muzzle Device
- RRA Operator Brake: Integrates an RRA Operator Brake, precisely threaded 5/8-32, designed to significantly mitigate felt recoil and optimize rapid shot recovery for enhanced follow-up shot capability.
Trigger System
- RRA Two-Stage Ultra Match Trigger: Incorporates the RRA Two-Stage Ultra Match Trigger, a precision-tuned component that contributes directly to the rifle’s guaranteed 1 MOA accuracy at 100 yards, a performance metric backed by the manufacturer’s warranty. This system offers a crisp, repeatable break, critical for precision engagements.
Ergonomics and Integration
- Handguard: A 13-inch RRA Extended Lightweight Free Float Rail provides extensive M-LOK compatibility, allowing for modular integration of various firearm accessories, including illumination tools, laser systems, and tactical optics.
- Grip: Fitted with a Hogue rubber grip, designed for secure, non-slip handling and to enhance weapon control under dynamic conditions.
- Stock: Features an RRA Operator CAR Stock, providing a robust and adjustable shoulder interface for consistent shot placement and user comfort.
Receiver Construction
- Forged Receivers: Built upon robust, forged RRA LAR-15M lower and A4 upper receivers. This manufacturing process ensures structural integrity and durability, critical for sustained field use.
Gas System
- Mid-Length Configuration: Utilizes a mid-length gas system in conjunction with a low-profile gas block. This configuration is optimized for consistent and reliable cycling, while minimizing over-gassing and enhancing component longevity.
Technical Specifications
- Caliber: .450 Bushmaster
- Barrel Length: 16 inches
- Barrel Material: Stainless Steel, Cryogenically Treated
- Twist Rate: 1:24
- Muzzle Thread: 5/8-32
- Muzzle Device: RRA Operator Brake
- Trigger: RRA Two-Stage Ultra Match Trigger
- Handguard: 13-inch RRA Extended Lightweight Free Float Rail (M-LOK)
- Grip: Hogue Rubber Grip
- Stock: RRA Operator CAR Stock
- Receivers: Forged RRA LAR-15M Lower, Forged A4 Upper
- Gas System: Mid-Length with Low-Profile Gas Block
- Accuracy Guarantee: 1 MOA at 100 Yards (Manufacturer Backed Warranty)
- Weight: 6.8 pounds (unloaded)
- Overall Length: 34.5 inches (stock retracted)
- Magazine Capacity: 5 rounds (one magazine included)
- Included Accessories: One (1) 5-round magazine, RRA hard case
